A cokpobation



- 0.1. HoLu. FURNACE STRUCTURE.

APPLICATION FILED JAN. 6, 1919 mined N qv. 9, 1920.v

] munt vai() inviten stares earner orties.

CHARLES I-l'Ol'JUB, CLUMUS, OHIO, ASSIGNOR T0 THE W. LAMNECK COME'ANY, OF COLUMBUSI 02E-IXO, A. CORPORATON OF OHIO. y

remmen sirnncrnnn.

Specification of Letters Patent.

Patented Nov. 9,1920.

Application iled JanuaryV e, 1919. Serial No. 269,787.

To all w /tom it may cof/ceri lie it linoivn that l, Citernes d. Henne, a citizfen o? the United States,

residing at nus, in the county of Franklin and ol Ohio, have invented certain new useful improvements in Furnace Structures7 oi which the following is a specication.

Illhis invention relates to furnace structures and is particularly directed to an improved' type ol joining rin@- used in the manufacture of furnace casings and parts.

These `furnace casings and other parts frequently vary in sise to a small degree and consequently it has been found necessary to malte special joining rings for each casing joh. ln order to overcome this, l have provided a ring Whose ends are designed to overlap and which itself may be made oli a plurality of sections. The ends oit the ring are provided "with adjustable connecting means, forming the Vessence oil" this invention, which may be used either for connecting the ends by suitable rivets or bolts or these ends may be connected by means of a tongue struck from one end of the rinO and formed to selectively engage With any one ci a series ci openings formed in the other end, Whereby circumferential adjustment of the con necting structure is eliected.

The preferred embodiment of my invention is shown in the accompanying sheet of drawings in which similar characters of reference designate corresponding parts and in which7 j f Figure l represents a furnace casing showing the manner in which the joining rings are brought into use,

.F ig. 2 is a view in perspective oit one end el 'the joining ring,

Fig. 3 is a view in perspective oi the opposite end of the joining ring,

F ig. l is a longitudinal section taken through the overlapping ends of the Vring showing one manner in which they may be connected,u Y

Fig. 5 is a cross-section taken on yline 5-5 of Fig. el,

Fig. 6 is an enlarged cross-section showing the manner in which the casing parts are associated with the joining ring, and

F ig. 7 is an enlarged Eragmentary view showing the specilie type oi punchings employed in one end of the joining ring.

In Fig. l, the furnace casing has been designated generally by the reference `nu` merel l. .and as shown, the sections 2 and 3 are joined by means ot the joining ring shown at e. This latter is made from one piece'el' material but be. termed ola pluralityoi` arcuate sections to enable the various sections to be easily nestedftor shipment. The ring itself is provided With a central longitudinal bead 5 against VWhich the edges oi. the casing parts 2 and 3 areV designed to rest to prevent their movement toward each other. The structure thus far described is one generally in use and no particular claim is made to this.

l'loWeverythe novelty of my invention resides in the manner in which the ring is rendered adjustable as to size to compensate Jfor any slight inaccuracies regarding the diameter of the casing. It Will be understood that a small traction of an inch variaf tion in the diameter of the casing causes a perceptible variation circumferentially and it is this adjustment that is effected by the present invention. ln Fig. 3 one end of the ring is shown as being provided with a pair of openings 6 and by an inspection of Fig. el, it will be apparent that these openings are formed. by. striking out the tongues shown at 7. These tongues are designed to tit any'ot the slotted openings 8 located on the opposite end of the rino'. By means ot these spaced slotted openings 8, the desired adjustment as to size may be effected and by bending the ends of the tongues over as shown at 9, the ring ends may be securely united. However, it is often desired to unite these ends by means of rivets or'bolts and to permit of this, a plurality et circular apertures l() are shown as being located between the variousV slotted openings and these apertures are also of a size and so located to register with the openings 6 as clearly shown in Fig. fl .an additional desirable feature incident to so locating the apertures 10 so that they communicate with the slotted openings 8 located on opposite sides of them is that a greatly reduced amount of material is sheared during the punching operation than would be the case should these apertures not bein communication with the slotted openings.

From the foregoing description, taken in connection with the accompanying sheet of drawings, it Will be apparent that I have provided a type of joining ring which may ever readilyV be adjusted to size to compensate for the slight inaccuracies in diameters of the casing parts encountered in actual practice.

Likewise, the ring ends may be. Ylooked together either by bending the fit said tongue and being also provided VWith a plurality of apertures, any one of which will register with the opening formed by said struck-out tongue, said apertures being located between said slots.

2. In a furnace structure, a joining ring comprising a resilient band, one end of which has a tongue struck outvvardlytherefrom, the opposite end being provided with a plurality of spaced slotted openings designed to tit said tongue, said slotted openings being also connected by apertures located between slots,canyl one of said apertures being designed to register with the opening formed by Vsaid struck-out tongue.

In. testimony Whereoi l aix my signature.

CHARLES J. HoLUB. 

